diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 7f9376a7ba73d..2d66139452faa 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -2610,7 +2610,8 @@ public class WindowManagerService extends IWindowManager.Stub
                 if (type == TYPE_WALLPAPER) {
                     new WallpaperWindowToken(this, binder, true, dc, callerCanManageAppTokens);
                 } else {
-                    new WindowToken(this, binder, type, true, dc, callerCanManageAppTokens);
+                    new WindowToken(this, binder, type, true, dc, callerCanManageAppTokens,
+                            false /* roundedCornerOverlay */, fromClientToken);
                 }
             }
         } finally {
diff --git a/services/core/java/com/android/server/wm/WindowToken.java b/services/core/java/com/android/server/wm/WindowToken.java
index 98d9c8fcab5a2..8c38db73d5b49 100644
--- a/services/core/java/com/android/server/wm/WindowToken.java
+++ b/services/core/java/com/android/server/wm/WindowToken.java
@@ -50,6 +50,7 @@ import android.view.InsetsState;
 import android.view.SurfaceControl;
 import android.view.WindowManager;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.policy.WindowManagerPolicy;
 import com.android.server.protolog.common.ProtoLog;
 
@@ -99,7 +100,8 @@ class WindowToken extends WindowContainer<WindowState> {
     private Configuration mLastReportedConfig;
     private int mLastReportedDisplay = INVALID_DISPLAY;
 
-    private final boolean mFromClientToken;
+    @VisibleForTesting
+    final boolean mFromClientToken;
 
     /**
      * Used to fix the transform of the token to be rotated to a rotation different than it's
@@ -180,13 +182,13 @@ class WindowToken extends WindowContainer<WindowState> {
     WindowToken(WindowManagerService service, IBinder _token, int type, boolean persistOnEmpty,
             DisplayContent dc, boolean ownerCanManageAppTokens) {
         this(service, _token, type, persistOnEmpty, dc, ownerCanManageAppTokens,
-                false /* roundedCornersOverlay */);
+                false /* roundedCornerOverlay */);
     }
 
     WindowToken(WindowManagerService service, IBinder _token, int type, boolean persistOnEmpty,
-            DisplayContent dc, boolean ownerCanManageAppTokens, boolean fromClientToken) {
+            DisplayContent dc, boolean ownerCanManageAppTokens, boolean roundedCornerOverlay) {
         this(service, _token, type, persistOnEmpty, dc, ownerCanManageAppTokens,
-                false /* roundedCornersOverlay */, fromClientToken);
+                roundedCornerOverlay, false /* fromClientToken */);
     }
 
     WindowToken(WindowManagerService service, IBinder _token, int type, boolean persistOnEmpty,
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
index 35723abb43104..da4bde59a09e1 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowManagerServiceTests.java
@@ -16,9 +16,16 @@
 
 package com.android.server.wm;
 
+import static android.view.WindowManager.LayoutParams.TYPE_TOAST;
+
 import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
 
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
+
 import android.content.pm.PackageManager;
+import android.os.IBinder;
 import android.platform.test.annotations.Presubmit;
 
 import androidx.test.filters.SmallTest;
@@ -57,4 +64,25 @@ public class WindowManagerServiceTests extends WindowTestsBase {
         return getInstrumentation().getTargetContext().getPackageManager().hasSystemFeature(
                 PackageManager.FEATURE_AUTOMOTIVE);
     }
+
+    @Test
+    public void testAddWindowToken() {
+        IBinder token = mock(IBinder.class);
+        mWm.addWindowToken(token, TYPE_TOAST, mDisplayContent.getDisplayId());
+
+        WindowToken windowToken = mWm.mRoot.getWindowToken(token);
+        assertFalse(windowToken.mRoundedCornerOverlay);
+        assertFalse(windowToken.mFromClientToken);
+    }
+
+    @Test
+    public void testAddWindowTokenWithOptions() {
+        IBinder token = mock(IBinder.class);
+        mWm.addWindowTokenWithOptions(token, TYPE_TOAST, mDisplayContent.getDisplayId(),
+                null /* options */, null /* options */);
+
+        WindowToken windowToken = mWm.mRoot.getWindowToken(token);
+        assertFalse(windowToken.mRoundedCornerOverlay);
+        assertTrue(windowToken.mFromClientToken);
+    }
 }
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java
index e6aed498cf1c0..38f643daec270 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java
@@ -25,7 +25,9 @@ import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.mock;
 
+import android.os.IBinder;
 import android.platform.test.annotations.Presubmit;
 
 import androidx.test.filters.SmallTest;
@@ -129,4 +131,28 @@ public class WindowTokenTests extends WindowTestsBase {
         // Verify that the token windows are no longer attached to it.
         assertEquals(0, token.getWindowsCount());
     }
+
+    /**
+     * Test that {@link WindowToken} constructor parameters is set with expectation.
+     */
+    @Test
+    public void testWindowTokenConstructorSanity() {
+        WindowToken token = new WindowToken(mDisplayContent.mWmService, mock(IBinder.class),
+                TYPE_TOAST, true /* persistOnEmpty */, mDisplayContent,
+                true /* ownerCanManageAppTokens */);
+        assertFalse(token.mRoundedCornerOverlay);
+        assertFalse(token.mFromClientToken);
+
+        token = new WindowToken(mDisplayContent.mWmService, mock(IBinder.class), TYPE_TOAST,
+                true /* persistOnEmpty */, mDisplayContent, true /* ownerCanManageAppTokens */,
+                true /* roundedCornerOverlay */);
+        assertTrue(token.mRoundedCornerOverlay);
+        assertFalse(token.mFromClientToken);
+
+        token = new WindowToken(mDisplayContent.mWmService, mock(IBinder.class), TYPE_TOAST,
+                true /* persistOnEmpty */, mDisplayContent, true /* ownerCanManageAppTokens */,
+                true /* roundedCornerOverlay */, true /* fromClientToken */);
+        assertTrue(token.mRoundedCornerOverlay);
+        assertTrue(token.mFromClientToken);
+    }
 }